The Deux-Montagnes Softball Association adopts “Softball Canada – Official Rule Book”, as the rules and regulations for play. Unless otherwise noted in these House Rules, the Official Rules with respect to Fast Pitch (Orthodox) will be enforced.


Please take the time to read and understand the rules for your league:


Junior League Rules

Adult League Rules


DMSA approved bats 


A bat that has any one of the following stamps and is not on the barred list is legal for play in DMSA Adult leagues.
ISF 2005, ASA 2000, ASA 2004 and USSSA 1.20 BPF.


All models of Easton Ghost bats are barred from play in DMSA games.





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